linux³õѧ֮ËöËé֪ʶµãÕûÀí¶þ
linuxÖ®shell¼ò½é
shellÊÇÓû§ºÍlinuxϵͳ֮¼äµÄ½Ó¿Ú£¨ºÜÏñwindowsϵͳϵÄdos£©£¬linuxÓжàÖÖshell£¬È±Ê¡µÄʹÓÃbash
shell³£ÓõÄ3ÖÖÀàÐÍ£º
1¡¢Bourne shell£¨sh£©£ºUNIXÉÏ×î³õʹÓõÄÀàÐÍ£¬linuxϵͳȱʡµÄshellÊÇBourne Again shell£¨bash£©£¬ËûÊÇBourne shellµÄÀ©Õ¹£¬Ôö¼ÓÁ˺ܶàÌØÐÔ£¬»¹°üº¬ÁËC shellºÍKorn shellµÄÓŵã
2¡¢C shell£¨csh£©
3¡¢Korn shell £¨ksh£©
½ø³ÌºÍÈÎÎñ¹ÜÀíÃüÁ
ps [Ñ¡Ïî]
ÆäÖг£ÓõÄÑ¡ÏîÓÐ
-e ÏÔʾËùÓнø³Ì
-f È«¸ñʽ
-l ³¤¸ñʽ
¾ÙÀý
1 ÔÚ¿ØÖÆ̨ÊäÈë psÃüÁî µÃµ½ÀàËÆÈçϵÄÊä³ö
PID TTY TIME CMD
12039 pts/0 00:00:00 bash
18710 pts/0 00:00:00 ps
¸ÃÃüÁîÏÔʾµ±Ç°µÇ¼Óû§µÄÖ´Ðнø³Ì ÏÔʾµÄÏîÄ¿¹²·ÖΪËÄÏî ÒÀ´ÎΪ PID(½ø
³Ì ID) TTY(ÖÕ¶ËÃû³Æ) TIME(½ø³ÌÖ´ÐÐʱ¼ä) CMD(¸Ã½ø³ÌµÄÃüÁîÐÐÊäÈë)
2 ÔÚ¿ØÖÆ̨ÊäÈëÒÔÏÂÃüÁî
ps –ef
UID PID PPID C STIME TTY TIME CMD
root 1 0 0 Jan14 ? 00:00:05 init
root 2 1 0 Jan14 ? 00:00:00 [keventd]
root 3 1 0 Jan14 ? 00:00:00 [kapmd]
…………………..
¸ÃÃüÁÏÔʾËùÓÐÖ´Ðнø³ÌµÄÐÅÏ¢ ÏÔʾµÄÏîÄ¿ÒÀ´ÎΪ UID Ö´Ðнø³ÌµÄÓÃ
»§ ID PID(½ø³Ì ID) PPID(¸¸½ø³Ì ID) TTY(ÖÕ¶ËÃû³Æ) STIME(½ø³ÌÆô
¶¯Ê±¼ä) TIME(½ø³ÌÖ´ÐÐʱ¼ä) CMD(¸Ã½ø³ÌµÄÃüÁîÐÐÊäÈë)
¸ÃÃüÁîµÄÊä³ö½Ï¶à ¿ÉÒÔʹÓà grepÃüÁî½øÐйýÂÇ ÒÔ·½±ã²é¿´ Èç
ps –ef|grep oracle
½«Ö»ÏÔʾ³ö°üº¬ oracleµÄÊä³öÐÐ ¿ÉÒÔ²éѯִÐнø³ÌµÄÓû§Îª oracleµÄËùÓÐ
½ø³Ì
top
top ÃüÁîºÍ ps ÃüÁîµÄ»ù±¾×÷ÓÃÊÇÏàͬµÄ ÏÔʾϵͳµ±Ç°µÄ½ø³ÌºÍÆäËû×´¿ö
µ«ÊÇ topÊÇ
Ïà¹ØÎĵµ£º
od (octal dump)ºÍ xd(hexdump)ÃüÁî¿ÉÒÔÒÔÊ®½øÖÆ¡¢°Ë½øÖÆ¡¢Ê®Áù½øÖƺÍASCIIÂëÀ´ÏÔʾÎļþ»òÕßÁ÷£¬ËüÃǶÔÓÚ·ÃÎÊ»ò¿ÉÊӵؼì²éÎļþÖв»ÄÜÖ±½ÓÏÔʾÔÚÖÕ¶ËÉϵÄ×Ö·ûºÜÓÐÓá£
Óï·¨£ºod £ÛÑ¡Ïî£Ý Îļþ…
ÃüÁîÖи÷Ñ¡ÏîµÄº¬Ò壺
- A Ö¸¶¨µØÖ·»ùÊý£¬°üÀ¨£º
d Ê®½øÖÆ
o °Ë ......
[/b][url]http://blog.chinaunix.net/u3/95713/showart_1931142.html[/url]
Linux¸ù¾Ý°æ±¾µÄ²»Í¬, ÎļþµÄ×éÖ¯½á¹¹µ±È»»áÓÐËù²î±ð,µ«Ö÷ÒªµÄÎļþ¼ÐÓ¦¸ÃÊÇÒ»ÑùµÄ,Á˽âÕâЩÎļþ¼ÐµÄº¬Òå,¶ÔÓÚÁ˽âLinuxÓÐ×ÅÖØÒªµÄÒâÒå.
1, / LinuxÎļþϵͳµÄÈë¿Ú£¬Ò²ÊÇ´¦ÓÚ×î¸ßÒ»¼¶µÄĿ¼£»
2, /bin ϵͳËùÐèÒªµÄÄÇЩÃüÁîλÓÚ´Ë ......
WindowsϵͳÆäʵºÍLinuxϵͳÓÐÏàËƵĵط½£¬WindowsϵͳÎļþ¡¢Ä¿Â¼µÄÊôÐÔÓÐÖ»¶Á¡¢Òþ²Ø£¬¶øLinux Ò²Ò»Ñù¡£
¡¡¡¡LinuxÖУ¬Ã¿Ò»¸öÎļþ¶¼¾ßÓÐÌض¨µÄÊôÐÔ¡£Ö÷Òª°üÀ¨ÎļþÀàÐͺÍÎļþȨÏÞÁ½¸ö·½Ãæ¡£¿ÉÒÔ·ÖΪ5ÖÖ²»Í¬µÄÀàÐÍ£ºÆÕͨÎļþ¡¢Ä¿Â¼Îļþ¡¢Á´½ÓÎļþ¡¢É豸Îļþ
ºÍ¹ÜµÀÎļþ¡£ÉϺ£Êý¾Ý»Ö¸´
¡¡¡¡ËùνµÄÎļþȨÏÞ£¬ÊÇÖ¸¶ÔÎļþµÄ·ÃÎ ......
linuxÎļþϵͳ·ÖÅä²ßÂÔ£º
¿é·ÖÅä( block allocation )£º´ÅÅÌÉϵÄÎļþ¿é¸ù¾ÝÐèÒª·ÖÅä¸øÎļþ£¬±ÜÃâÁË´æ´¢¿Õ¼äµÄÀË·Ñ¡£µ«µ±ÎļþÀ©³äʱ£¬»áÔì³ÉÎļþÖÐÎļþ¿éµÄ²»Á¬Ðø£¬´Ó¶øµ¼Ö¹ý¶àµÄ´ÅÅÌÑ°µÀʱ¼ä¡£Ã¿Ò»´ÎÎļþÀ©Õ¹Ê±£¬¿é·ÖÅäËã·¨¾ÍÐèҪдÈëÎļþ¿éµÄ½á¹¹ÐÅÏ¢£¬Ò²¾ÍÊÇ meta-dada ¡£meta-data×ÜÊÇÓëÎļþÒ»ÆðдÈë´æ´¢É豸£¬¸ ......